feat: add method to end the current turn

src/main/java/uulm/teamname/marvelous/gamelibrary/gamelogic/GameStateManager.java

@@ -112,6 +112,16 @@ class GameStateManager {
         return result;
     }
 
+    /**
+     * Forcefully ends the current turn.
+     * @return The resulting {@link Event}s
+     */
+    public ArrayList<Event> endTurn() {
+        ArrayList<Event> result = GameLogic.endTurn(state);
+        applyEvents(result);
+        return result;
+    }
+
     /**
      * Produces a {@link EventType#GamestateEvent} for the current {@link GameState}.
      * @return The resulting event